bob in son



@geiten tates (intent @ffice Letters Patent No. 81,295, dated August 18, 1868.

IMPROVEMELIT IN SEIN GLB-MACHINES.

tiiie Stinnes nicht tu in time @citas lirtent mit making mit at tigt sana.

'lO ALL WHOM IT MAY CONCERN:

VBe it known that I, L. C. RGBINSON, of Shcpardsville, in the county of Clinton,'and State of Michigan, have invented a new and improved Machine for Sewing Shingles or Heading; and I do hereby declaro that the following is a full, clear, and exact description thereof, which will ena-blcV others skilled in the art to Ina-ke and use the same, reference being had to the accompanying drawings, forming part of this specication'.

The nature of my invention relates to improvements in machines for sawing shingles or heading, or other similar articles, whereby it is designed to provide a more simple and effective machine that will either saw them iu a straight or tapered form, cut oli' the ends, and plane the edges, than any now inuse; and it consists in thel combinations and arrangements of theiparts whereby the same lis cli'ccted, as will be more fully described on reference to the accompanying drawings, wherein- Figure 1 represents a longitudinal vertical sectional elevation, on the line :c :u of iig. 2.

FigureZ, a horizontal section en theline y y of g. 1.

Figure 3, a transverscscetion, on the line z e of iig. I.

Figures! represents a side view of the feeding-apparatus and alarm-bell.

Similar letters oi' reference indicate corresponding parts. v

A represents the frame of the machine, and B a saw-gate, provided with twosashes and 'two sets of saws, the set marked cl being connected to a sash, b, which is movable within the sash C; the set marked a are piv-` oted at their lower ends to the sliding sash, and hinged to the same at their upper ends, so that they may be turned to agree with the angle which they arereqnired to make with thc`rigidly-tixed saws of the other sash, C. The laterally-moving sash Z1 is operatcdin its said lateral movement by the bell-crank, CZ, connecting-rod, d1, and a crank-pin on the feed-roller, d2, the end of the lever d taking into a long slot in the side of the sash b. As the extent of the lateral movement of the sash Zz is effected by a halt` revolution of the crank on the feed-roll, gl", the latter` must be ot' sucient size to feed the length of a bolt, also at a half revolution, the angle of the set of saws inthe movable sash being reversed by any suitable mechanism after the passage ot' each bolt.

D' represents a batting-saw, suspended in the swinging frame, D', which is brought into operation by theV attendant by a hand-lever, e, (see iig 3,) and cord, el, the proper time lfor which is' indicated by a stroke of a bell, e2, which is actuated by pins e3 on the ratchet-feed wheel, as the bolt, or partially-formed shingles, are also moving. against the face ot' the sar.' D. While it is doing its work, provision is made for it to slide in its bearings against the coiled spring, as when the saw, D, after cutting otl the ends of the shingles or staves, and being moved back again to its normal position, would be forced by the spring against the end of the last shingle or shingles on that side, so that the teeth of the saw would considerably injure them if left to the actionk of the said spring. The mandrel ofthe saw is provided witha sliding rat-chct-bar, g', and pawhfz, the bar being connected to the mandrel by a crotch, and supported on the frame, D', so that it may slide thereon, by which the action of the spring is restrained until the saw has swung back entirely beyond the shingles, when the pawl may be raised by a stud, properly arranged, or by the attendant, to allow the saw to resume its right position for action on the next holt or set of shingles. v

The feed-wheel is actuated byfpawhlcver, El, connecting rod En and crank-shaft.

E3 Il* represent an edging-device of ordinary construction, conveniently arranged for an attendant to take the shingles from the tahle in front of the cut-oil' sawand apply them to it for edging.

F represents the main driving-shaft, from which motion is communicated to the several parts by thc belts Fl, and F". v

When it is desired to saw heading, or any other articles not tapered, the movable-sash may be readily taken out of the sushC, by detaching the front, top, and bottom plates C. The machine may also be used for sawing longer stuti, by applying an extra bench with rollers in front of the feeding-rollcrs.

I am aware of the patent granted to Groves and Bogart, November-29, 1853, for improvements in shinglcmachines, but this patent I disclaim, as it contains none oi' my improvements.

I claim as new, and desire to secure by Letters Patent-- 1. The combination, with the sash C, of the laterallymovingsa,sh, b, having its saws hinged, as described, and operated by the feed-roller, (Z2, through the medium of the ,bell-crank d and connecting rod, d1, substantally as and for the pur'pose specified.

2. The eut-oil` saw, D, in combination withthe sliding mandrel, spring f, ratchet-bar f1, ond pawl f2, operating in the manner described, with relation to the hinged saws ci a', es and for the purpose specified.

y L. C. ROBINSON.

Witnesses:

ORREN GATES, WM. SHEPARD. 

